Ricoh Type M12 Field Service Manual page 46

2. Replacement and Adjustment
3. Replace the installed FCU board [A] with a new FCU board (
4. Attach the flat cable [A] to CN603 of the new fax unit.
• Use caution to avoid an oblique insertion of the cable.
• Make sure that the blue tapes of the flat cable face outward.
5. Switch the battery jumper switch [A] to the "ON" position.
• If you do not switch the battery jumper switch position, SC820 will occur.
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x 3, x 1).